CN105487591A - Layered power supply used for reducing current consumption - Google Patents
Layered power supply used for reducing current consumption Download PDFInfo
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- CN105487591A CN105487591A CN201510890678.6A CN201510890678A CN105487591A CN 105487591 A CN105487591 A CN 105487591A CN 201510890678 A CN201510890678 A CN 201510890678A CN 105487591 A CN105487591 A CN 105487591A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
- G05F3/02—Regulating voltage or current
- G05F3/08—Regulating voltage or current wherein the variable is dc
- G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
- G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
- G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
- G05F3/26—Current mirrors
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/577—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices for plural loads
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
- G05F3/02—Regulating voltage or current
- G05F3/08—Regulating voltage or current wherein the variable is dc
- G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
- G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
- G05F3/02—Regulating voltage or current
- G05F3/08—Regulating voltage or current wherein the variable is dc
- G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
- G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
- G05F3/18—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using Zener diodes
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- Microelectronics & Electronic Packaging (AREA)
- Dc-Dc Converters (AREA)
- Semiconductor Integrated Circuits (AREA)
- Power Engineering (AREA)
Abstract
The invention describes a circuit layout (100, 200), including a first capacitor (111) and a second capacitor (121) connected in series between a high potential (131) and a low potential (132). The circuit layout (100, 200) includes a first energy consumption circuit (113) connected in parallel with the first capacitor (111). The first energy consumption circuit (113) consumes electric energy at a first voltage (114). In addition, the circuit layout (100, 200) includes a second energy consumption circuit (123) connected in parallel with the second capacitor (121). The second energy consumption circuit (123) consumes electric energy at a second voltage (124). The sum of the first voltage (114) and the second voltage (124) is smaller than an absolute difference between the high potential (131) and the low potential (132). In addition, the circuit layout (100, 200) includes voltage setting devices (112, 122, 212, 222) used for setting the voltage of the first capacitor (111) according to the first voltage (114) and setting the voltage of the second capacitor (121) according to the second voltage (124).
Description
Technical field
The present invention relates to the power supply for integrated circuit (IC).
Background technology
Integrated circuit can have different simulations and/or digital function, and these needs provide the electric energy may with different voltage.For different simulations and/or digital function provide the feasible method of electric energy for using power source special converter, this power source special converter is used for providing the electric energy with different voltage for different simulations and/or digital function.But the use of power supply changeover device result in the increase of the space requirement of integrated circuit.In addition, the use of power supply changeover device result in the increase of the energy ezpenditure of integrated circuit.
The invention solves and provide a kind of power-efficient high and the technical matters of cost-effective integrated circuit, this integrated circuit, according to different energy requirements, comprises multiple different simulation and/or digital function.
Summary of the invention
According to an aspect of the present invention, a kind of circuit layout (such as power supply and multiple energy consumption circuit) is described.This circuit layout can be integrated circuit.Such as, this circuit layout comprises the driving circuit for light emitting diode.This circuit layout comprises the first electric capacity and the second electric capacity, and this first electric capacity and this second electric capacity are connected in series between noble potential (such as supply voltage Vcc) and electronegative potential (such as ground voltage).In addition, this circuit layout comprises the first energy consumption circuit (such as digital circuit), and this first energy consumption circuit is connected with this first Capacitance parallel connection.This first energy consumption circuit is with the first voltage consumption electric energy.This first energy consumption circuit comprises one or more electronic package, illustrates, as the digital assembly of logic gate, wherein this one or more electronic package is voltage-operated with first.
In addition, this circuit layout comprises the second energy consumption circuit (such as mimic channel), and this second energy consumption circuit is connected with this second Capacitance parallel connection.This second energy consumption circuit is with the second voltage consumption electric energy.This second energy consumption circuit comprises one or more electronic package, illustrates, as the simulated assembly of analog computing amplifier or comparer, wherein this one or more electronic package is voltage-operated with second.
This first and second voltage meets: this first voltage and this second voltage and size be less than or equal to the absolute difference of this noble potential and this low-voltage.
In addition, this circuit layout comprises voltage sets device, and this voltage sets device is used for according to the voltage at the first voltage sets first electric capacity place, and according to the voltage at the second voltage sets second electric capacity place.Therefore, the mode of power-efficient high and high cost efficiency electric energy can be provided for the first and second energy consumption circuits.
This voltage sets device comprises and the first voltage-limiting element of this first Capacitance parallel connection and/or the second voltage-limiting element with this second Capacitance parallel connection.This first voltage-limiting element has the first voltage breakdown corresponding to the first voltage, and/or this second voltage-limiting element has the second voltage breakdown corresponding to the second voltage.These voltage-limiting element can comprise one or more voltage stabilizing diode respectively.
This circuit layout also can comprise the current source for generating the electric current through the first and/or second voltage-limiting element.Replaceability or additionally, this current source can be used for the electric current controlling to be provided to the first energy consumption circuit and the second energy consumption circuit.Current source can be connected in series with the first voltage-limiting element be connected in series (in parallel with the first energy consumption circuit) and the second voltage-limiting element (in parallel with the second energy consumption circuit).Therefore, current source can be used for the total current controlling inflow circuit layout.
Circuit layout can comprise the device (such as using shunt resistance on the first and/or second voltage-limiting element) for measuring the electric current through the first and/or second voltage-limiting element.Current source can be used for the electric current by the first and/or second voltage-limiting element according to recording, and controls the electric current that current source provides.Especially, meeting to the control of total current the electric current by the first and/or second voltage-limiting element recorded is zero substantially.Therefore, can in mode effectively for the first and second energy consumption circuits provide power supply.
Voltage sets device can comprise the first voltage stabilizer of the first output voltage for setting the first electric capacity upper end.Replaceability or additionally, this voltage sets device can comprise the second voltage stabilizer of the second output voltage for setting the second electric capacity upper end, and wherein the lower end of the first electric capacity is connected to the upper end of the second electric capacity.Therefore, one or more voltage stabilizer can be utilized to set the voltage level at the first and/or second energy consumption circuit place.
The lower end of the second electric capacity can be connected to the second current potential, and the first voltage stabilizer and the second voltage stabilizer lay respectively between noble potential and electronegative potential.First output voltage (being provided by the first voltage stabilizer) be more than or equal to the first voltage and the second voltage and.Second output voltage (being provided by the second voltage stabilizer) is more than or equal to the second voltage.
Voltage sets device comprises for by the voltage sets of the second electric capacity and/or the shunt regulator being restricted to the second voltage.
Replaceability or additionally, voltage sets device comprises the first voltage source and the second voltage source that are connected in series.This first voltage source can be used for providing electric energy with the first voltage, and/or the second voltage source is used for providing electric energy with the second voltage.In addition, voltage sets device can comprise the high side ports (being positioned at the side of this current mirror) that is connected to the first voltage source and be connected to the first current mirror of the high side ports (being positioned at the opposite side of this current mirror) of the first energy consumption circuit.In addition, voltage sets device can comprise the high side ports (being positioned at the side of this current mirror) that is connected to the second voltage source and be connected to the second current mirror of the high side ports (being positioned at the opposite side of this current mirror) of the second energy consumption circuit.
Circuit layout also comprises the circuit for providing bidirectional level to shift between first datum and the second datum of the second energy consumption circuit of the first energy consumption circuit.The first voltage can be provided relative to the first datum, and/or provide the second voltage relative to the second datum.
According on the other hand, describe the method that electric energy is provided to the first energy consumption circuit and the second energy consumption circuit.This first energy consumption circuit is with the first voltage consumption electric energy, and the second energy consumption circuit is with the second voltage consumption electric energy.The method comprises: between noble potential and electronegative potential, be connected in series the first electric capacity and the second electric capacity, wherein this first voltage and the second voltage and size be less than or equal to absolute difference between noble potential and electronegative potential.In addition, the method comprises: the first energy consumption circuit is connected with the first Capacitance parallel connection; Second energy consumption circuit is connected with the second Capacitance parallel connection.In addition, the method comprises: according to the voltage of the first voltage sets first electric capacity; And according to the voltage of the second voltage sets second electric capacity.
Should illustrate, method and system described herein and preferred embodiment thereof can be applied separately, or with additive method disclosed in literary composition and system connected applications.In addition, corresponding method is equally applicable to the feature described in system.In addition, all aspects in the method and system described in literary composition can combination in any.Particularly, the feature of claim can be combined with each other by any way.
In this article, term " connection " or " being connected " represent element electrical communication each other, comprise direct connection, such as, by electric wire, or the connection of other modes.
Accompanying drawing explanation
Hereafter by reference to the accompanying drawings the present invention is made an explanation, wherein:
Fig. 1 describes a kind of calcspar of exemplary integrated circuit;
Fig. 2 describes the calcspar of another kind of exemplary integrated circuit;
Fig. 3 describes a kind of calcspar comprising the exemplary integrated circuit of shunt regulator;
Fig. 4 describes the calcspar that another kind comprises the exemplary integrated circuit of shunt regulator;
Fig. 5 shows the process flow diagram of the exemplary method for providing electric energy for the first and second energy consumption circuits; And
Fig. 6 shows the exemplary power supply string/layering power supply for providing energy for multiple energy consumption circuit.
Embodiment
As noted above, the invention solves in the mode of power-efficient high as the difference in functionality in integrated circuit or circuit provide the technical matters of electric energy.In this manual, Fig. 1 shows the calcspar of integrated circuit 100, and this integrated circuit 100 comprises digital function or digital circuit 113, and analog functuion or mimic channel 123.This digital circuit 113 consumes electric energy with the first voltage 114, and mimic channel 123 consumes electric energy with the second voltage 124.This digital circuit 113 can comprise one or more logic module (such as logic gate), and mimic channel 123 can comprise one or more simulated assembly (such as operational amplifier or comparer).
Circuit 100 comprises power supply string, and this power supply displacement is between noble potential 131 (such as supply voltage Vcc, as Vcc=12V) and electronegative potential 132 (as ground voltage).Noble potential 131 as referred to herein is also referred to as the first current potential, and electronegative potential 132 is also referred to as the second current potential.This power supply string comprises current source 101, and this current source 101 is for controlling the electric current 104 through this power supply string.This power supply string also comprises the first voltage stabilizing diode 112 be connected in parallel with digital circuit 113, and the second voltage stabilizing diode 122 be connected in parallel with mimic channel 123.The voltage breakdown that voltage stabilizing diode 112,122 presents corresponds respectively to the first voltage 114 and the second voltage 124.Therefore, supply voltage correct for the setting of each circuit 113,123 in an efficient way can be guaranteed.
First electric capacity 111 can be connected in parallel with digital circuit 113, and the second electric capacity 121 can be connected in parallel with mimic channel 123.Capacitor 111,121 can be respectively used to maintain and/or provide circuit 113, the voltage 114,124 at 123 places.
Circuit layout 100 shown in Fig. 1 such as can be used for LED (light emitting diode) application and/or AC charger application.In this case, standby current is normally important.Circuit layout described herein can be utilized to reduce this standby current.In addition, during carrying out routine operation to this circuit layout, the heat of integrated circuit (IC) can reduce to close to half, thus the energy reducing circuit layout runs off.
Therefore, Fig. 1 shows two layer functions 113,123.Circuit 100 shown in Fig. 1 adopts the voltage stabilizing diode 112,122 be connected in series with controlled current source 101.Current source 101 by through voltage stabilizing diode 112, the control of the electric current of voltage regulation of 122.If electric current of voltage regulation exceeds upper current limit or lower current limit, then can reduce or improve the electric current of this current source 101 respectively.This can two-wayly realize.Can control current source 101, thus be circuit 113,123 provide minimum required electric current.
In other words, circuit layout 100 can comprise the device for measuring through the first voltage stabilizing diode 112 and/or the electric current through the second voltage stabilizing diode 122.Illustrate, shunt resistance can be connected in series with the first voltage stabilizing diode 112 and/or the second voltage stabilizing diode 122 (each diode 112, directly over 122 or immediately below).The pressure drop at this shunt resistance place provides the instruction of the electric current through respective voltage stabilizing diode 112,122.Can according to the electric current through the first voltage stabilizing diode 112 recorded and/or the electric current provided through the CCCS 101 of the second voltage stabilizing diode 122.Particularly, control the electric current that current source 101 provides, make the electric current through the first voltage stabilizing diode 112 and/or the size through the electric current of the second voltage stabilizing diode 122 lower than predetermined threshold value (being such as zero substantially).Therefore, the electric current entering into circuit layout 100 can be reduced, thus the energy as far as possible reducing circuit layout 100 runs off as far as possible.
Due to circuit 113, the hierarchical layout of 123, the electric current of the power supply consumer 113 at layering top can be layered the power supply consumer 123 " re-using " of bottom.Therefore, circuit 100 can realize overall reduction current drain and improve energy efficiency.
Circuit 100 also comprises bidirectional level transfer 102, and the transfer 102 of this bidirectional level is for providing the conversion (vice versa) from the datum of digital circuit 113 to the datum of mimic channel 123.Therefore, mimic channel 123 can intercom mutually with digital circuit 113, even if two circuit 113,123 have different datums.Such as, if the control signal that the signal demand that mimic channel 123 is measured is provided to digital circuit 113 and/or digital circuit 113 needs to be provided to mimic channel 123, then this may be necessary.Bidirectional level transfer 102 can be used for compensation will at circuit 113, the signal of communication between 123.This compensation is determined according to the first voltage 114 and/or the second voltage 124 usually.Especially, this compensation is determined (or equaling the second voltage 124) according to the second voltage 124.
In addition, Fig. 1 shows light decoupling and closes resistance 103.
Fig. 2 shows the calcspar of another exemplary circuit 200.In the circuit 200 shown in Fig. 2, adjuster 212,222 are respectively used to set the voltage 114,124 on digital circuit 113 and mimic channel 123.Particularly, second adjuster 222 is for being set as the second output voltage by the second voltage 124 on the second electric capacity 121, and the first adjuster 222 for by the first and second voltages 114,124 and be set as the first output voltage, thus the voltage at the first electric capacity 111 place correspond to the first voltage 114.
Therefore, Fig. 2 shows the layering power-supply system of Use Adjustment device 212,222.The adjuster 222 at electronegative potential 132 place can be used for absorbing and provides electric current.
Two adjusters 212,213 (such as operational amplifier) are connected to noble potential (such as supply voltage Vcc).The output voltage of each adjuster 212,222 is fixing (such as to the first output voltage or the second output voltage).Electric current 114 from noble potential 131 is split to two different adjusters 212,222.Such as, if digital circuit 113 obtain 10mA (the first voltage with 2V) simultaneously mimic channel 123 obtain 15mA (the second voltage with 5V), then the first adjuster 212 needs to provide output current 10mA from noble potential 131, and the second adjuster 222 needs to provide output current 5mA (i.e. 15mA-10mA).If it is relevant that two functions 113,123 are ground connection, obtain total current 25mA compared to from noble potential, the total current 114 obtained from noble potential 131 is 15mA.
Fig. 3 and Fig. 4 shows the possible scheme utilizing current mirror 314,315 and 324,325 to set the first and second voltages 114,124.The electric current provided by current source 301 is mirrored onto power supply string, and described power supply string comprises the first capacitor 111 and the second capacitor 121, and selectivity decoupling resistor 303.Decoupling or damping resistance 303 can be used for reducing the noise between the power supply of digital circuit 113 and the power supply of mimic channel 123.This first and second voltage 114,124 utilizes voltage source 312 respectively, 322 settings.Especially, the first voltage 114 utilizes the first voltage source 312 to set, and the second voltage 124 utilizes the second voltage source 322 to set.
Fig. 3 and Fig. 4 also comprises shunt regulator 305, and this shunt regulator 305 is for limiting the voltage at mimic channel 123 place by this transistor 304.Especially, this shunt regulator 305 can guarantee that the voltage at mimic channel 123 place is no more than the second voltage 124.In addition, Fig. 3 shows selectivity capacitor 302.
In figs. 3 and 4, transistor 315,325 as source follower or the push-pull output stage as AB level amplifier.The threshold voltage vt of this transistor utilizes transistor 314, and 324 compensate.Shunt regulator 305 can be utilized to be implemented to the simulation supply of mimic channel 123.During operation, the logic supply of digital circuit 113 can be adjusted to the logic service voltage (such as by adjustment voltage source 312,322) of needs.
It should be understood that can to function 113,123 layering of various varying number.In addition, other functions or circuit can be connected in parallel with each other.Such as, moreover can use charge balance, condenser type balance, such as, by using the design of capacitive charge pump, balances two or more supplies of two or more circuit 113,123.
Under any circumstance, the energy being supplied to multiple layered circuit all allows to reuse electric current, and then reduces the energy ezpenditure of integrated circuit.
Fig. 5 shows the process flow diagram of exemplary method 500, and the method 500 is for providing electric energy to the first energy consumption circuit 113 (such as arriving digital circuit) and the second energy consumption circuit (such as arriving mimic channel).This first energy consumption circuit 113 consumes electric energy with the first voltage 114, and the second energy consumption circuit 123 consumes electric energy with the second voltage 124.The method 500 comprises step 501: between noble potential 131 and electronegative potential 132, be connected in series the first electric capacity 111 and the second electric capacity 121, thus this first voltage 114 and the second voltage 124 and size be less than absolute difference between noble potential 131 and electronegative potential 132.In addition, the method 500 also comprises step 502: the first energy consumption circuit 113 and the first electric capacity 111 are connected in parallel, and step 503: the second energy consumption circuit 123 and the second electric capacity 121 are connected in parallel.In addition, the method 500 also comprises step 504: the voltage setting the first electric capacity 111 according to the first voltage 114, and step 505: the voltage setting the second electric capacity 121 according to the second voltage 124.
Fig. 6 shows another exemplary circuit layout, and wherein the supply voltage 114,124,614 of different circuit 113,123,613 stems from the first current potential 131 (such as equaling rail voltage).It is that three different energy consumption circuits 113,123,613 provide supply voltage 114,124, the voltage stabilizing diode 112,122,612 of 614 that this circuit layout 600 comprises being respectively used to of being connected in series.In this depicted example, the energy consumption circuit 113 of top such as corresponds to mimic channel, energy consumption circuit 123 such as corresponds to digital circuit, and energy consumption circuit 613 such as corresponds to gate driver (such as the door of driving LED driving transistors).In addition, Fig. 6 shows the 3rd electric capacity 611 for the 3rd supply voltage 614.
Circuit layout 600 comprises voltage divider, and this voltage divider has upper resistance 601 and lower resistance 603, and for detecting the intermediate detection pin 602 of the electric current through power supply string.Can find out, the pressure drop that the pressure drop that the difference between the first current potential 131 and the second current potential 132 equals resistance 160 place adds upper and lower resistance 603 place add the first voltage 114, second voltage 124 and tertiary voltage 164 and.Therefore, the resistance of upper resistance 601 and the resistance of lower resistance 603 can be used for setting the electric current entering the string of power supply shown in Fig. 6.If the upper port of the first energy consumption circuit 113 needs extra electric current, then this voltage divider 601,603 can be made to be connected in parallel more voltage divider.
Integrally, the invention describes as multiple layered circuit provides layering Power supply.This layered circuit operates at different voltage domains with different voltage levels.Each circuit present himself reference potential or with reference to ground.Triple-well technology or isolated transistor can be utilized to realize this layered circuit.This analogy and digital circuit is separated by providing special trap for circuit.
There is provided layering power supply can reduce electric current and heat.In other words, layering power supply is provided can to improve the power-efficient of integrated circuit.
It should be understood that explanation herein and accompanying drawing object are only to describe the thought of the method and system that the present invention proposes.Those skilled in the art can make various conversion to it, although the present invention does not obviously describe or shows these conversion, this conversion embodies thought of the present invention, includes within spirit of the present invention and protection domain.In addition, all examples herein proposed and embodiment are mainly only intended to task of explanation, contribute to the thought of the method and system that reader understanding the present invention proposes.In addition, the inventive concept proposed in literary composition, aspect and embodiment, and all statements of concrete example mean and comprise its equivalent.
Claims (15)
1. a circuit layout (100,200), is characterized in that, comprising:
The first electric capacity (111) be connected in series between noble potential (131) and electronegative potential (132) and the second electric capacity (121);
The first energy consumption circuit (113) be connected in parallel with described first electric capacity (111); Wherein said first energy consumption circuit (113) consumes electric energy with the first voltage (114);
The second energy consumption circuit (123) be connected in parallel with described second electric capacity (121); Wherein said second energy consumption circuit (123) consumes electric energy with the second voltage (124); Wherein said first voltage (114) and described second voltage (124) and size be less than absolute difference between described noble potential (131) and described electronegative potential (132); And
For setting described first electric capacity (111) place's voltage according to described first voltage (114) and setting the voltage sets device (112 of the second electric capacity (121) place voltage according to described second voltage (124), 122,212,222).
2. circuit layout according to claim 1 (100,200), is characterized in that, described voltage sets device (112,122,212,222) comprising:
First voltage-limiting element (112) in parallel with described first electric capacity (111); And/or
Second voltage-limiting element (122) in parallel with described second electric capacity (121).
3. circuit layout according to claim 2 (100,200), is characterized in that,
Described first voltage-limiting element (112) presents the voltage breakdown corresponding to the first voltage (114); And/or
Described second voltage-limiting element (122) presents the voltage breakdown corresponding to the second voltage (124).
4. the circuit layout (100 according to Claims 2 or 3,200), also comprise current source (101), described current source (101) is for controlling the electric current being provided to the first energy consumption circuit (113) and the second energy consumption circuit (123).
5. circuit layout according to claim 4 (100,200), is characterized in that,
Described circuit layout (100,200) also comprises the device of electric current for measuring by described first and/or described second voltage-limiting element (112,122); And
The electric current provided by the CCCS (101) of the first and/or second voltage-limiting element (112,122) that described current source (101) records for basis.
6. circuit layout according to claim 1 (100,200), is characterized in that, described voltage sets device (112,122,212,222) comprising:
For setting first voltage stabilizer (212) of the first output voltage of the first electric capacity (111) upper end; And/or
For setting second voltage stabilizer (222) of the second output voltage of the second electric capacity (121) upper end;
Wherein the lower end of the first electric capacity (111) is connected to the upper end of the second electric capacity (121).
7. circuit layout according to claim 6 (100,200), is characterized in that,
The bottom of described second electric capacity (121) is connected to described second current potential (132); And
Described first voltage stabilizer (212) and described second voltage stabilizer (222) are positioned between described noble potential (131) and described electronegative potential (132).
8. circuit layout according to claim 7 (100,200), is characterized in that,
Described first output voltage be more than or equal to described first voltage (114) and described second voltage (124) and; And
Described second output voltage is more than or equal to described second voltage (124).
9. circuit layout (100 according to claim 1,200), it is characterized in that, described voltage sets device (112,122,212,222) comprise shunt regulator (305), described shunt regulator (305) is for being the second voltage (124) by the voltage sets at described second electric capacity (121) place.
10. circuit layout according to claim 1 (100,200), is characterized in that, described voltage sets device (112,122,212,222) comprising:
The first voltage source (312) be connected in series and the second voltage source (322); Wherein said first voltage source (312) is for providing electric energy with the first voltage; Described second voltage source (322) is for providing electric energy with the second voltage;
First current mirror (314,315), described first current mirror (314,315) is connected to the high side ports of described first voltage source (312) and is connected to the high side ports of described first energy consumption circuit (113); And
Second current mirror (324,325), described second current mirror (324,325) is connected to the high side ports of described second voltage source (322) and is connected to the high side ports of described second energy consumption circuit (123).
11. circuit layouts (100 according to claim 1,200) circuit (102) for providing bidirectional level to shift between first datum and the second datum of the second energy consumption circuit (123) of the first energy consumption circuit (113), is also comprised.
12. circuit layouts according to claim 1 (100,200), is characterized in that,
Described first energy consumption circuit (113) comprises one or more respectively with the first voltage-operated electronic package; And
Described second energy consumption circuit (123) comprises one or more respectively with the second voltage-operated electronic package.
13. circuit layouts according to claim 1 (100,200), is characterized in that,
Described first energy consumption circuit (113) comprises one or more digital assembly; And
Described second energy consumption circuit (123) comprises one or more simulated assembly.
14. circuit layouts according to claim 1 (100,200), is characterized in that, described circuit layout (100,200) comprises the driving circuit for light emitting diode.
15. 1 kinds of methods (500) being the first energy consumption circuit (113) and the second energy consumption circuit (123) and electric energy is provided, it is characterized in that, described first energy consumption circuit (113) consumes electric energy with the first voltage (114); And described second energy consumption circuit (123) consumes electric energy with the second voltage (124); Described method (500) comprising:
Step 501: be connected in series the first electric capacity (111) and the second electric capacity (121) between described noble potential (131) and described electronegative potential (132); Wherein said first voltage (114) and described second voltage (124) and size be less than absolute difference between described noble potential (131) and described electronegative potential (132);
Step 502: described first energy consumption circuit (113) and described first electric capacity (111) are connected in parallel;
Step 503: described second energy consumption circuit (123) and described second electric capacity (121) are connected in parallel;
Step 504: the voltage setting the first electric capacity (111) place according to the first voltage (114); And
Step 505: the voltage setting the second electric capacity (121) place according to the second voltage (124).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014226495.2A DE102014226495B4 (en) | 2014-12-18 | 2014-12-18 | Stacked energy supply for reduced power consumption |
| DE102014226495.2 | 2014-12-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105487591A true CN105487591A (en) | 2016-04-13 |
| CN105487591B CN105487591B (en) | 2018-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510890678.6A Active CN105487591B (en) | 2014-12-18 | 2015-12-07 | For reducing the layering power supply of current drain |
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|---|---|
| US (1) | US10185347B2 (en) |
| CN (1) | CN105487591B (en) |
| DE (1) | DE102014226495B4 (en) |
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| US20020180369A1 (en) * | 2001-02-21 | 2002-12-05 | Jun Koyama | Light emitting device and electronic appliance |
| US20020196212A1 (en) * | 2001-06-25 | 2002-12-26 | Nec Corporation | Current driver circuit and image display device |
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| CN100356427C (en) * | 2003-03-24 | 2007-12-19 | 恩益禧电子股份有限公司 | Current driving circuit and display |
| US20070257623A1 (en) * | 2006-03-27 | 2007-11-08 | Texas Instruments, Incorporated | Highly efficient series string led driver with individual led control |
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| WO2013164417A1 (en) * | 2012-05-04 | 2013-11-07 | Osram Gmbh | Controlling semiconductor lighting elements on the basis of the bypass state of adjacent semiconductor lighting elements |
Also Published As
| Publication number | Publication date |
|---|---|
| US10185347B2 (en) | 2019-01-22 |
| US20160181800A1 (en) | 2016-06-23 |
| DE102014226495A1 (en) | 2016-06-23 |
| DE102014226495B4 (en) | 2018-03-08 |
| CN105487591B (en) | 2018-02-16 |
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